Reproduction steps:
1. Open the attached project “ReproProject”
2. Open the scene “SampleScene“
3. Enter Play Mode
4. In the Hierarchy window, select “ProceduralRender” GameObject
5. In the opened Inspector Window on the right, in the component “Procedural Render MB“ change the “RenderMode“ from “RenderMeshIndirect” to “RenderPrimitivesIndexedIndirect”
6. Observe the results in the Game View

Actual result: Only one cube is visible, procedural rendering is disabled
Expected result: Multiple cubes are visible, procedural rendering is enabled

Reproducible in: 2023.1.0a1, 6000.0.65f1, 6000.3.3f1, 6000.4.0b3, 6000.5.0a4

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Workaround: RenderPrimitivesIndexedIndirect can be forced it to work by manually calling material.EnableKeyword("PROCEDURAL_INSTANCING_ON"); before rendering with RenderPrimitivesIndexedIndirect()

Notes:
- Also reproducible in Standalone Player for Windows
- Reproducible with DirectX11 and DirectX12 Graphic APIs
- Script “ProceduralRenderMB“ that is used, is located at Assets → ProceduralRenderBug → Scripts